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PubMed2005

Coagulopathy and blood component transfusion in trauma.

Trauma is a serious global health problem, accounting for approximately one in 10 deaths worldwide. Uncontrollable bleeding accounts for 39% of trauma-related deaths and is the leading cause of potentially preventable death in patients with major trauma. While bleeding from vascular injury can usually be repaired surgically, coagulopathy-related bleeding is often more difficult to manage and may also mask the site of vascular injury. The causes of coagulopathy in patients with severe trauma are multifactorial, including consumption and dilution of platelets and coagulation factors, as well as dysfunction of platelets and the coagulation system. The interplay between hypothermia, acidosis and progressive coagulopathy, referred to as the 'lethal triad', often results in exsanguination. Current management of coagulopathy-related bleeding is based on blood component replacement therapy. However, there is a limit on the level of haemostasis that can be restored by replacement therapy. In addition, there is evidence that transfusion of red blood cells immediately after injury increases the incidence of post-injury infection and multiple organ failure. Strategies to prevent significant coagulopathy and to control critical bleeding effectively in the presence of coagulopathy may decrease the requirement for blood transfusion, thereby improving clinical outcome of patients with major trauma.

Blood Coagulation Disorders↗
PubMed1978

Blood transusion: use and abuse of blood components.

Transfusion of whole blood and some blood components may result in serious or fatal complications, among which hepatitis is most frequent (20,000 to 30,000 cases and 3,000 deaths a year). Although hepatitis B virus (HB Ag) sometimes is implicated in posttransfusion hepatitis, non-A non-B. virus(es) (hepatitis "C" virus) probably accounts for most posttransfusion hepatitis. Half of all blood transfusions may be unnecessary.Responsible transfusion practice requires use of appropriate blood components for which there is adequate justification. Transfusion of red blood cells should be given as packed cells in most instances and whole blood should seldom be used.

Blood Banks↗